diff --git a/en/syslib/pm.md b/en/syslib/pm.md
index 6c0737da36a7639dfd7c12f6b1ac64c3668ddf0c..953217f6dee20f474206483a70384e8ab4a9c669 100644
--- a/en/syslib/pm.md
+++ b/en/syslib/pm.md
@@ -137,6 +137,8 @@ Sets automatic sleep mode.
  `0` -  Successful execution
 
  `-1` - Failed execution
+ 
+> Note: BG95 series cannot use this method during the boot-up process.
 
 ## Get the Number of Created Wakelocks
 
diff --git a/zh/syslib/pm.md b/zh/syslib/pm.md
index 35d915a79cd036800340e65fd6915507fadb9b8d..7b4094e90a43394fd7b1c8c51631450b916a25aa 100644
--- a/zh/syslib/pm.md
+++ b/zh/syslib/pm.md
@@ -126,7 +126,9 @@ pm.autosleep(sleep_flag)
 
 **返回值描述**
 
-成功返回 `0`，失败返回 `-1`
+成功返回 `0`，否则返回 `-1`
+
+> BG95系列不能在开机阶段使用此方法。
 
 ## 获取已创建的锁数量